Place Fabrication Parts

Place fabrication parts for the selected service.

Use the MEP Fabrication Parts palette to select a service and place fabrication parts in the drawing area. If no parts are listed in the browser, click Settings to open the Fabrication Settings dialog and load content into the MEP Fabrication Parts palette.

Video: Creating an MEP Fabrication Layout in Revit

  1. The MEP Fabrication Parts palette displays by default when you create a new model in Revit MEP. If it does not, click Systems tabFabrication panel (Fabrication Part).
    • Alternatively, click View tabWindows panelUser Interface drop-downMEP Fabrication Parts.
    Note: If prompted to specify a fabrication configuration, use the Fabrications Settings dialog to specify a fabrication configuration and load services.
  2. In the MEP Fabrication Parts palette, select a Service and a Group from the drop-lists.
  3. Click a part button and move the cursor to the drawing area.
    • Some part buttons have an arrow that allows you to select from a list of available parts.

      When you click the arrow, a drop-list displays additional parts based on the size. This drop-list is controlled by the conditions in the service definition, similar to routing preferences. For example, a bend may use a pressed bend up to a certain size, and a segmented bend above that size.

    • Some part buttons in the MEP Fabrication Parts palette are gray.

      This indicates that the fabrication part (ITM) is not currently supported in Revit MEP. These include components such as flex duct, structural members, air terminals, and mechanical equipment. In place of these components, you can use Revit Family (RFA) based components using the category's standard placement tools.

    • To specify a size, some parts, such as purchased duct and pipe fittings, have a Product Entry field in the Properties palette. The Product Entry list is a catalog of available sizes for the selected part. When placing product list parts, in the Properties palette, under Constraints for Product Entry, select a size. Use the Edit Part button to modify the dimensions of generic or template parts. When placing generic parts, in the Properties palette, under Primary End, for Main Primary Width and Main Primary Depth, enter a size. Under Dimensions, specify the Length Option and a Length. Catalog parts are available in one fixed size.
    • Other fabrication parts, such as rectangular ductwork, have flexible parameters. The most commonly used parameters are available on the Properties palette.
      Note: When placing generic duct, you must specify a part material. In the Properties palette, under Mechanical, specify a Part Material.
  4. To place a hanger on a straight segment, select the hanger type from the Group drop-down.
    • When placing a hanger, position the cursor along the edge or centerline of a segment. Hangers can only be placed on straight horizontal fabrication segments. By default, hangers are attached to the closest structure element. Structure categories include floor, roof, structure framing (such as beam or truss), stairs, and slabs. If no structure is available, Revit MEP uses the default rod length as set in the ITM file definition.
  5. To add insulation or lining to duct or pipe, in the Properties palette, under Mechanical, click the drop-list for Insulation Specification.
  6. Place the cursor in the drawing area to position the part.
  7. Click to place the part.
    • When you place generic parts, each part is automatically sized based on the part it is connected to.
  8. Continue to select and place parts from the MEP Fabrication Parts palette.
  9. To show disconnect markers for fabrication parts with connectors that are not currently connected, click Analyze tabCheck Systems panel (Show Disconnects) and select one or more of the following:
    • Duct
    • Pipe
    • Cable Tray and Conduit
    • Electrical
    • Fabrication Hanger